DATE_FORMAT_ISO8601  845 ext/date/php_date.c 	REGISTER_STRING_CONSTANT("DATE_ISO8601", DATE_FORMAT_ISO8601, CONST_CS | CONST_PERSISTENT);
DATE_FORMAT_ISO8601 2037 ext/date/php_date.c 	REGISTER_DATE_CLASS_CONST_STRING("ISO8601", DATE_FORMAT_ISO8601);
DATE_FORMAT_ISO8601 3889 ext/date/php_date.c 		add_assoc_string(element, "time", php_format_date(DATE_FORMAT_ISO8601, 13, timestamp_begin, 0 TSRMLS_CC), 0); \
DATE_FORMAT_ISO8601 3899 ext/date/php_date.c 		add_assoc_string(element, "time", php_format_date(DATE_FORMAT_ISO8601, 13, ts, 0 TSRMLS_CC), 0); \